Mac OS X

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Mac OS X||||~

Mac OS X logo

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Mac OS X desktop Screenshot of Mac OS X v10.7 "Lion"
Company / developer	Apple Inc.
Programmed in	C, C++, Objective-C[1[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-0|]]][2[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-1|]]]
OS family	Mac OS, Unix[3[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-leopard_unix_cert-2|]]][4[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-snow_leopard_unix_cert-3|]]][5[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-4|]]]
Working state	Current
Source model	Closed source (with open source components)
Initial release	24 March 2001 (2001-03-24)
Latest stable release	10.6.4 [6[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-5|]]] (June 15, 2010; 4 months ago (2010-06-15)) [+/−]
Marketing target	Personal computing
Available language(s)	Multi-lingual
Update method	Apple Software Update
Supported platforms	IA-32 and x86-64: from version 10.4 PowerPC: 32-bit & 64-bit up through version 10.5
Kernel type	Hybrid based on the Mach microkernel
Default user interface	Graphical (Aqua)
License	Proprietary EULA
Preceded by	Mac OS 9
Official website	Official website

Mac OS X (pronounced /ˈmæk ˌoʊ ˌɛs ˈtɛn/ //mak oh es ten//)[7[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-ten_not_x-6|]]] is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, Mac OS X has been included with all new Macintosh computer systems. It is the successor to Mac OS 9, released in 1999, the final release of the "classic" Mac OS, which had been Apple's primary operating system since 1984.
Mac OS X, whose X is the Roman numeral for //10// and is a prominent part of its brand identity, is a Unix-based graphical operating system,[8[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-osx_unix-7|]]] built on technologies developed at NeXT between the second half of the 1980s and Apple's purchase of the company in late 1996. From its sixth release Mac OS X v10.5 "Leopard" and onwards, every release of Mac OS X gained UNIX 03 certification while running on Intel processors.[3[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-leopard_unix_cert-2|]]][4[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-snow_leopard_unix_cert-3|]]]
The first version released was Mac OS X Server 1.0 in 1999, and a desktop-oriented version, Mac OS X v10.0 "Cheetah" followed on March 24, 2001. Releases of Mac OS X are named after big cats: for example, Mac OS X v10.6 is usually referred to by Apple and users as "Snow Leopard". The server edition, Mac OS X Server, is architecturally identical to its desktop counterpart, and includes tools to facilitate management of workgroups of Mac OS X machines, and to provide access to network services. These tools include a mail transfer agent, a Samba server, an LDAP server, a domain name server, and others. It is pre-loaded on Apple's Xserve server hardware, but can be run on almost all of Apple's current selling computer models.[9[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-8|]]]
Apple also produces specialized versions of Mac OS X for use on four of its consumer devices: the iOS for the iPhone, iPod Touch,[10[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-9|]]] iPad, and the new Apple TV, as well as an unnamed version for the previous Apple TV.[11[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-10|]]]

Versions

Mac OS X Version Information||~ Version ||~ Codename ||~ Date Announced ||~ Release Date ||~ Most Recent Version ||

Mac OS X Server 1.0	Hera		March 16, 1999	1.2v3 (October 27, 2000)
Public Beta	Kodiak		September 13, 2000
10.0	Cheetah		March 24, 2001	10.0.4 (June 22, 2001)
10.1	Puma	July 18, 2001[65[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-64|]]]	September 25, 2001	10.1.5 (June 6, 2002)
10.2	Jaguar	May 6, 2002[66[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-65|]]]	August 24, 2002	10.2.8 (October 3, 2003)
10.3	Panther	June 23, 2003[67[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-66|]]]	October 24, 2003	10.3.9 (April 15, 2005)
10.4	Tiger	May 4, 2004[68[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-67|]]]	April 29, 2005	10.4.11 (November 14, 2007)
10.5	Leopard	June 26, 2006[69[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-68|]]]	October 26, 2007	10.5.8 (August 5, 2009)
10.6	Snow Leopard	June 9, 2008[70[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-69|]]]	August 28, 2009	10.6.4 (June 15, 2010)
10.7	Lion	October 20, 2010[71[[http://en.wikipedia.org/wiki/Mac_OS_X#cite_note-70|]]]	Summer 2011	10.7.0 Preview (October 20, 2010)